An image produced by a concave mirror is 4 times greater than the object. If the radius of curvature is 20 cm, determine the object distance in front of the mirror. Is it 7.5 cm or 12 cm? A resistor of resistance R is connected to a power source of voltage V to form a circuit. The current through the power source is I = 1.0 A. How many resistors r must be connected parralel to R to increase the current I to 5.0 A? Let r = R. My Answer: 5 resistors During a physics lab, you observe a light ray passing through an unknown material towards a boundary with air with an angle of incidence of 24.5°. The light ray emerges into the air with an angle
An image produced by a concave mirror is 4 times greater than the object. If the radius of curvature is 20 cm, determine the object distance in front of the mirror. Is it 7.5 cm or 12 cm?
A resistor of resistance R is connected to a power source of voltage V to form a circuit. The current through the power source is I = 1.0 A. How many resistors r must be connected parralel to R to increase the current I to 5.0 A? Let r = R. My Answer: 5 resistors
During a physics lab, you observe a light ray passing through an unknown material towards a boundary with air with an angle of incidence of 24.5°. The light ray emerges into the air with an angle of refraction of 33.8°. Determine the index of refraction of the unknown material. Is it 0.75 or 1.34?
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